Is it oil?
How bad a drip is it?
It could just be lube - maybe there was a squeek from the pedal pivot or them oiling the cable
If it's a constant drip and you bought it from a dealer - then take it back get them to sort it.

It felt like some sort of Lube. It seemed like a reasonable amount. I wiped it up now and will see if it happens on the way home.

Hi, up above your foot pedal, there are 2 valves, one of these valves will be leaking, cant remember if it brake or clutch fluid, we had to buy a new part and it cost us about £60. get it done quickly, as the fluid will get into your carpets.